Quadehar The Sorcerer (Book of Stars, Part 1)

The first book in an action-packed fantasy trilogy--THE BOOK OF STARS--from an up-and-coming talented new French author.

Welcome to the island of the Ys, a piece of land lost somewhere beween the Real World and the Unsure World. On the Ys, children go to school and play games just like other children . But they also live among knights and wizards who protect them from the dark forces of the Unsure World--a place where bandits, giants, and monstrous creatures live on a treacherous landscape.
On the Ys lives is a twelve-year-old boy named Guillemot de Troil, who dreams of becoming a knight. Guillemot lives with his mother, his father having mysteriously disappeared years ago. (continued in Ext. Summary).